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Thread: How to: wire your stock pump for return fuel, the easy way Reply to Thread
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Topic Review (Newest First)
08-01-2013 06:54 PM
700whpfocus any pics? how do you set it up? would making the guage bigger on the stock ground or power wire help on the stock system?
08-01-2013 10:44 AM
1turbofocus What would you like to know ?

Tom
08-01-2013 09:40 AM
700whpfocus
Quote:
Originally Posted by 1turbofocus View Post
Easy , a return fuel system you would run a wire to a relay from the switch, the relay would have a HEAVY gauge wire from the Batt to the relay then to the pump and a HEAVY ground wire to the pump

Then you would trick the fuel rail psi regulator to read 45psi , I will go into that another time because I dont tell everything on here and it doesnt seem others have caught on to this yet , makes a tuners life easier and safer on the engine for sure

Tom
Please tell me more tom. my friend did a surge rank on his 1986 toyota corolla gts.............
05-06-2013 08:01 PM
1turbofocus This isnt to use the stock pump driver or the ECU once you go to a large wire , relay and return fuel system

Tom
05-06-2013 05:11 PM
ZXthrizzle05 tis a confusing thing to do
05-06-2013 10:18 AM
mikebontoft on the stock system. Right. but are we trying to switch power or ground on the pump? not sure why we need heavy ground wiring.
05-06-2013 09:58 AM
disciplerocks The power is switched, but the ecu controlled the ground.
05-06-2013 09:41 AM
mikebontoft so does that mean the relay is switching on the power side? I'm just trying to figure out what you meant. I know how they work, I just want to make sure I understood you correctly. Maybe I'm just not thinking straight right now.

switched power to the relay coil, and to ground. Heavy gauge wire (on a fused circuit) from the battery to the switched side of the relay. The other side of the relay goes to the pump positive, and the pump ground is a heavy gauge wire just straight to ground?
05-06-2013 08:39 AM
disciplerocks That makes sense. Thanks.
05-06-2013 12:40 AM
1turbofocus
Quote:
Originally Posted by disciplerocks View Post
This.

And how would you wire a return system with the Focus ECU? I am interested to know. If you are keeping the stock power supply, then how would that not prevent a spike?
Easy , a return fuel system you would run a wire to a relay from the switch, the relay would have a HEAVY gauge wire from the Batt to the relay then to the pump and a HEAVY ground wire to the pump

Then you would trick the fuel rail psi regulator to read 45psi , I will go into that another time because I dont tell everything on here and it doesnt seem others have caught on to this yet , makes a tuners life easier and safer on the engine for sure

Tom
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